"Yesterday we ended up having a mostly 'fail day' with the exception of some isolated severe cells on the ranges then later areas like Yamba, Ballina and Grafton had a quick rumble and lightning show.”

He said the no-show and short-lived storms was due to an onshore easterly sea breeze.

But, he said "thunderstorms should not have issues today”.

"Today we have a NNE wind expected and this will bring much warmer and moist air into the mix alongside with highly unstable atmosphere and very humid conditions thunderstorms should not have issues today,” Mr Parancin wrote.

Higgins Storm Chasing also posted on their page: "Some isolated to scattered storms are likely across NENSW and Southern parts of SEQLD during this afternoon. Some of these have a good chance of becoming severe.”

The weather forecasters wrote the humidity is making things feel a lot hotter.

"Maximums are likely to quickly reach the mid 30s and be heavily influenced by humidity making it feel between 3 and 6C warmer.”

The Weather Channel says Lismore is currently 32C, but due to humidity it feels like 38C.